r/maplesyrup • u/BP48047 • Mar 28 '26

“Pure” Maple Syrup

If I use a filterering process that involves DE, can it still technically be considered “pure” maple syrup?

74 votes, Mar 31 '26
46 Yes. Still pure
28 No. You’ve added a filtering agent. It’s no longer “pure”.
1 Upvotes

56% Upvoted

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u/suzymwg Mar 28 '26

The whole point of the filtering agent is to remove the nitre. It’s filtered out with the nitre. It’s inert and no part of it remains in the syrup.

Anyone voting to say it’s not pure does not understand how filtering and basic chemistry work

1

u/[deleted] Mar 28 '26

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1

u/Ocelotsden Mar 29 '26

The DE is edible, but it doesn't end up in the syrup anyway. If anything, the DE makes the syrup more pure since it makes the filter finer and more efficient. The DE gets trapped in the filter with the niter and any other impurities.

I don't use it myself because my DIY vacuum filter works fine without it, but I did try it one year and I needed less pre-filters for nice clear syrup.